Information on the coronavirus or any other science topic you should really check out our podcast so you can get it wherever you get your podcast you can also find us at. Science. Keep your distance and wear a mask its the advice thats been given to millions of people around the world and following that recommendation has become for many the norm. But others refuse to comply when you. Suddenly do you are there point in. All about. 6 months into the pendennis of the use of face masks is still up for debate so is the recommended approach still the way to go. Welcome to your covert 900. 00 special here on. These. Im tired of breathing through them you might be as well but experts say not wearing face masks during the pen demick isnt an option and then theres the us no where is the discussion around wearing face masks probably as polarizing as in the United States far from being merely tired of them many people simply have never wanted to wear them or you would allow the government to tell you you have to wear masks i. The time is now time for action thank you guys very much. Anti maskers people who against the wide consensus of Public Health experts either want to limit mask wearing or are against them completely running many of them to similar reasoning over at the end i dont wear a mask for the same reason i dont on where underwear things got a breach right there where you. Are right there were was. There was that it was that was. I thought there was. Where you are was that was the world. And on the other side critics have been taking the countrys most prominent anti mask her so far to task and increasingly creative ways. Was ruling and slow down. From her free and in the face there are those here who are so gullible. Oh. Heres a marketer or he might have even gotten the message he started to change his tune as of late to me not have no problem actually i i had a mask on arsenal like the way i look ok i thought it was ok it was a dark black mask and i thought it looked ok and looked like the lone ranger but now i have no problem with that i think people feel good about of they should do it however the president s decreasing aversion to masks influences attitudes it will probably be mandatory massacring policies that will make the difference the number of states requiring nose and mouth coverings like new york and california are increasing but calls are getting louder for a nationwide mask and. Proponents say National Measures would decrease the infection rate and save the country from another round of shutdowns and an estimated trillion dollar hit to its economy something most people would welcome maybe even and he massacres. Lets talk more about this with siddharth our my he is an assistant professor for ocean and Mechanical Engineering at a Florida AtlanticUniversity Welcome to w. Siddhartha you examined the effectiveness of various types of masts and found significant differences which was the most striking result so most striking thing was our little effect very thin single layer fabric. And no doubt it is better than nothing so any sort of crease coming is better than not ring at all but effectiveness and depend on a lot on the type of use if we are using plot. And as well as on the feet on our faces so with most mass we noticed there was a lot of leakage from the stock where the mass basically theres a gap between our nose and the mass so its important to have a good fit thats comfortable as well as good time if you will in fabrics so what would be the best fabric in order for the mass to work properly the best fabric that we tested was actually julie ayres of quilting cottons they were just stitched together and we fitted. Snugly on the face and you could see that they dont form motion on the jacket was restricted to barely 2 or 3 inches and that turned out to be. So if i have a mask like that or any other type how can i test if it is holding back aerosols in a proper fashion. So some people have suggested very simple desk would be old enough hold your mouse up to a light and if you do see that the mask blocks the light well its likely to be more effective ok what about wearing your mask with your nose out does that make any sense at all if you go out on the street you see people doing that. And i ask is that some people do that. No you should keep your nose covered by the mice for 2 reasons 1st you know when we exceed that if we are infected we might be we will definitely x. Y. Just leaving droplets out and then that risk is must do prevent the winter to some extent so. We would be protecting ourselves by covering are those its so we minimize the amount of droplets that we breathe in as well and as these masks some in many styles and fashion are what is your mask of your choice. I actually wear surgical masks and. Its because they are easily available but i have a few. Omentum asked as a straight shot between these types all right siddharth armor of the Florida University thank you for talking to doubly sure thank you for having me. Now wearing your mask is particularly important when you cannot keep your distance because sometimes we have to visit these crowded places like a train station for example now a start up in munich is focusing on a new pedestrian control system to ensure that people will not have to pass each other and close proximity and still get to where they want to go on time. Preventing potentially dangerous crowds thats what this team of computer scientists and simulation experts is working on an accurate a start up based in munich their corona pandemic is also demanding that they take a few steps into the unknown. The team usually calculates evacuation plans and security measures for major events or passenger flow. Whats new is that they now want to protect passengers employees and visitors from cope and 19 as much as possible. To be one of these items in the chronic crisis in particular has shown us that simulations now not only help with crowds of people but they can also help us to see how many people we can fit in a room while observing social distancing roles so it concerns Office Buildings but also train stations so that passengers can travel safely. The simulations are based on projections human avatars socalled agents follow life Like Movement patterns you know most of us on carry our t. Have built in social distancing that means we have a green circle around a person with a diameter of 3 meters or radius of one meter 50 how are they all supposed to get out now and here i can already see that maybe these people are going to come out too but theyll have to wait a bit who will actually go through a one meter wide door 1st if i have to keep a 1. 5 meter distance and you can see that the agents turn red from time to time that means theyve been under the minimum distance for a while because. The test avatars are still moving about without fear of infection researchers are focusing on a new pedestrian control system to ensure that in the future people will not have to pass each other in close proximity to reach their destinations on time. We are already seeing Human Systems everywhere in our daily lives whether its the entrance to the supermarket and so on and so forth i think the Research Work were talking about has something to do with the queuing system and actually tries to capture and describe whats happening there. And the findings can of course help us to plan cues with the different set of objectives. You have for. The minimum distance can even shorten travel routes and waiting times and train stations are mezzanine the one way street regulation. Can stop people getting in each others way when getting off or changing trains. The accurate team combines user information and architectural data which it hopes will help facilitate a return to normal and that means pedestrian traffic and with that public life could flow a little more smoothly again. Its time now to answer your questions about coven 19 he is our science and science correspondent there. What are the risks of sharing bathrooms with non family members like at the office. This question has been coming up of a lot ever since the publication of a new study on the physics of how aerosols are generated when you flush the toilet chinese researchers who modeled it discovered that every time you flush without closing the sea cover it sends a plume of aerosols up into the air which will will hover for minutes and then eventually settle on surfaces with other studies indicating that the virus might at least some time survive passage through the digestive tract suddenly those public facilities we all need to visit once in a while look like a potentially dangerous environment especially because many public or shared toilets are also enclosed window list spaces that said the experts that ive read on this mostly dont expect them to become hot beds of infection probably because everyones grown so leery of using public facilities if you have to though im you should of course take the standard precautions particularly when it comes to the washing your hands afterwards but but hopefully you were doing that anyway. And you can post your questions to derek on the you tube channel if youd like to keep up with the latest developments on the coronavirus do subscribe to our news that are just log on to g. W. Dot com slash corona dasht newsletter. And thats our show thanks for watching so youre back here tomorrow stay safe in their mask. Its a prolonged pitstop for formula one because of the corona virus but Lewis Hamilton and his colleagues are still in florida and. Now theyre doing it could actually. Theyre being left in the dust. The game is up im pacing the stars of formula one. Red. Next on d w. They were almost down for the come in through a great deal. And in the winter they were still behind. But true champion stand up. And fights player knew fallon looks back on the living championships. Played. In 60 minutes on t w. Slate. Listen carefully you dont know the soon. To be a good. Match. Discovered the old. Lead. Subscribe to a documentary on you tube. Played. As. We are living during the most extraordinary. History. Books